Finding the Fourth Proportional to 145,824.42, 218,736.72 and 83,451.18

Step by Step Solution

1. Step 1: Write the proportion equation
   145,824.42 : 218,736.72 = 83,451.18 : x
2. Step 2: Convert to fraction form
   145,824.42/218,736.72 = 83,451.18/x
3. Step 3: Cross multiply
   145,824.42x = 218,736.72 × 83,451.18
4. Step 4: Simplify right side
   145,824.42x = 18,253,837,393.33
5. Step 5: Solve for x
   x = 18,253,837,393.33/145,824.42
6. Step 6: Final answer
   x = 125,176.82